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Patented Aug. 23,' |898.

P. s.v HYsLoP.

HEAT EXCHANGER FOR FLUIDS.

(Application led Dec. 28, 1897.)

a sheets-sheet l.

(No Model.)

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No. 609,676. Patented Aug. 23', |898.

P. s. HYsLnP. Y HEAT EXCHANGER FOR FLUIDS.

3 Sheets-Sheet (Applcation filed Dec. 28, 1897.) (No Model.)

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P. S. HYSLP. HEAT EXCHANGER FUR FLUIDS.

Patented Aug. 23, |898.

(Application med me. 2s, 1897.)

3 Sheets-Sheet 3.

(No Model.)

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NTTED STATES PATENT OEEICE.

PETER SHARP HYSLOP, OF IVALMER, ENGLAND.

HEAT-EXCHANGERl FOR FLUIDS.

SPECIFICATION forming part of Letters Patent No. 609,676, dated August 23, 1898.

Application filed December 28, 1897- Serial No. 664,075. (No model.) l

To @ZZ whom t nza/y concern.-

Be it known that I, PETER SHARP HYsLoP, a subject of the Queen of Great Britain and Ireland, and a resident of -IValmen in the county of Kent, England, have invented an Improved Heat- Exchanger for Fluids, of which the following is a specification.

My said invention has for its object to increase the efficiency of heat-exchanging apparatus for iiuids.

My improved apparatus has been more especially designed for use in conjunction with a system of treating sewage by high heat to disinfect and sterilize it, the purpose being to economize in fuel by regenerating or recovering the heat by transferring it from the outgoing heated liquid to the incoming cold liquid. My heat-exchanging apparatus may, however, be used for many other purposes.

It consists, essentially, of a vessel in Whichseparate passages are formed for the ingoing cold fluid to be heated and for the uid from which the heat is to be obtained by means of a specially-constructed partition made of a thin metal sheet arranged in a zigzag or serpentine form, the ingoing and outgoing streams of iiuids entering the vessel at opposite ends between distributing guide-fianges. The partition may be made With indentations or corrugations to increase the surface and agitate the currents.

My improved apparatus is shown on three accompanying sheets of explanatory drawings, Figures l and 2 on Sheetl being respectively a longitudinal section and a horizontal section of part of the heat -exchangen Fig. 3 on Sheet 2 is a transverse vertical section, and Fig. 4 on Sheet 3 is a longitudinal vertical section,of parts of the heat-exchanger as drawn to a larger scale. Fig. 5 is a horizontal section of part of a detail.

My improved heat-exchanger consists of a vessel or casing, a part of which is shown in the drawings, the remainder (which is not shown) being similar. In this casing separate spaces or passages are formed for the in` going cold fluid to be heated and for the fluid from which the heat is to be obtained.

The heat-exchan ger is preferably constructed of cast-iron plates E and is of rectangular form and is preferably supported upon rollerbearings R to permit of a limited longitudinal movement for expansion or contraction, and the part E', separating the ingoing and outgoing streams of fiuid, is of thin metal, preferably sheet-copper, which is a good heatconductor and which is disposed in a zigzag or serpentine form. The zigzag folds are preferably vertical, and the hot iiuid enters and leaves the sections by Way of the passages P, formed in said sections, passes through the under spaces E2, While the cold fluid passes through the upper spaces E3,`the two iiuids entering at opposite ends of the casing and proceeding in opposite directions. The folded zigzag metal sheet E is attached to the bottom of the casing in a manner to allow of its expansion and contraction by changes of temperature taking place without straining it. The open ends of the zigzag metal sheet E', communicating with the bottom spaces E2, are each Vclosed by being fixed to a piece E31, of cut- Water section, this piece having a flange E4 for fixing it to the casing-bottom plate E, pieces of rubberDT, Fig. 4, being interposed between this fiange and a rib E9 on the casing-bottom plate. The metal sheet E' is made with indentations and projections D8, as shown in Fig. 5, or it might be corrugations to cause agitation of the fluids flowing in contact With it. The outside of the casing may be covered or coated with non-conducting material E5, such as felt or silicate cotton, to prevent Aloss of heat by radiation, and it is further covered with quilted felt or canvas or other suitable material to prevent loss of heat by convection.

Provision is made for quickly cleaning the interior of the heat-exchanger, overhead traveling lifting apparatus E6 being arranged for Y raisin glthe covers of the casin gs, and rotatory or other suitable brushing apparatus is provided for operating on the metal sheet or other parts.

The inlets and outlets for the fiuids are of a bottle-neck form and have Within them guide-anges E7 to distribute the ingoing iuid and collect the outgoing iiuid in a uniform manner to and from all the passages in the casing.

The heatexchanger communicates with any desired apparatus by pipes E5, fitted With stuing-box joints to allow of expansion and contraction.

IOO

What I claim as my invention is- 1. Aheat-exohanger for iluids,oomprising a Vessel in which separate passages are formed,'

to form passages for the flow of the fluids,

the said zigzag partition having also'inden- 15 tations or projections, to cause agitation of the owing fluids, as and for the purpose described.

In testimony whereof I have signed my name to this specification in the presence of 2o two subscribing Witnesses.

PETER SHARP HYSLOP..

Witnesses:

Y ARTHUR JOHN MCDIARMID,

WILLIAM SILVESTER EAsTEs. 

